401065842 has 8 divisors (see below), whose sum is σ = 802131696. Its totient is φ = 133688612.

The previous prime is 401065837. The next prime is 401065843. The reversal of 401065842 is 248560104.

It is a sphenic number, since it is the product of 3 distinct primes.

401065842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (401065843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33422148 + ... + 33422159.

It is an arithmetic number, because the mean of its divisors is an integer number (100266462).

Almost surely, 2^401065842 is an apocalyptic number.

401065842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401065842 is a wasteful number, since it uses less digits than its factorization.

401065842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66844312.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 401065842 is about 20026.6283233099. The cubic root of 401065842 is about 737.4601519023.

The spelling of 401065842 in words is "four hundred one million, sixty-five thousand, eight hundred forty-two".